I was going home in the car and Dick Lester suggested the title from something Ringo had said. I had used it in In His Own Write, but it was an off-the-cuff remark by Ringo, one of those malaproprisms - a Ringoism - said not to be funny, just said. So Dick Lester said, 'We are going to use that title,' and the next morning I brought in the song.

The title was Ringo's. We'd almost finished making the film and this fun bit arrived that we'd not know about before which was naming the film. So we were sitting around at Twickenham studios having a little brain-stroming session; director Dick Lester, us, Walter Shenson, Bud Ornstein and some other people were sitting around trying to come up with something and we said, 'Well, there was something Ringo said the other day ...'